New features we’ll see in React 19 :
- 🤖 React compiler: React is working on implementing a new compiler. Currently, Instagram is already leveraging this technology, and it will be released in future versions of React.
- 🔥 Server components: React has introduced the concept of server components after years of development. You’ll now be able to use this feature with Next.js.
- 💪 Actions: Actions will also revolutionize how we interact with DOM elements.
- 🌇 Document Metadata: Another much-needed improvement is on the horizon, empowering developers to accomplish more with less code.
- 💼 Assets Loading: This will enable assets to load in the background, which will improve both the application’s load time and the user experience.
- ⚙️ Web components: This is particularly fascinating: React code will now enable us to incorporate web components. I’m incredibly excited about this development, as it will unlock a myriad of possibilities.
- 🪝 Enhanced hooks: Exciting new hooks are on the horizon, poised to revolutionize our coding experience.
React 19 is set to tackle one of React’s longstanding challenges: the issue of excessive re-rendering. Developers have historically spent countless hours addressing this problem, which often leads to performance issues.
The constant hunt for code causing re-rendering and the subsequent optimization efforts have been a recurring task for engineers. But with React 19, this concern will be alleviated. The framework will handle re-rendering automatically, streamlining the development process.
Previously, developers relied on techniques such as useMemo(), useCallback(), memo, and so on to manage re-rendering. But with React 19, such manual interventions will no longer be necessary.
The framework will intelligently identify and memoize code under the hood, resulting in cleaner and more efficient code.
Stay tuned for more…
